[RE-wrenches] Snap-n-rack bonding certification

[Sam Haraldson]

The SnapNrack UL 2703 document highlights it's UL listing when used with
Type 1 and Type 2 modules.

https://snapnrack.com/wp-content/uploads/2019/05/SnapNrack_Fire_Classification_Tech_Bulletin_v.2-1.pdf

*SnapNrack Series 100, Ultra Rail and RL systems have been Certified for a
Class A fire rating with Type 1 and Type 2 modules, in accordance with the
standards set forth in UL1703/2703 and IBC 2012.*


The Mission Spec sheet references that it is UL listed under 1703.

https://s3.amazonaws.com/ecodirect_docs/Mission-Solar/Mission-Solar-MSE320SR8T-datasheet.pdf


For further reference this 1703 document talks a little about the different
module "types" that are tested.

https://www.intertek.com/building/standards/ul-1703/

*The “Type” of module dictates the number of fire tests that will be
required during the test process, there are 3 common types (15 total) that
are determined by their superstrate, encapsulant, substrate materials, and
size of module.*






Sam Haraldson <sam at onsiteenergyinc.com>
Installation & Service Manager
<http://www.onsiteenergyinc.com/>

| o. (406) 551-6135
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<https://onsiteenergyinc.com/bcorp>


On Tue, Jul 20, 2021 at 3:25 PM William Miller <william at millersolar.com>
wrote:

> Friends:
>
>
>
> I received the following correction noticed from a hired plan-checker:
>
>
>
> *Please provide the technical listing for the support rail system
> documenting that the supports have been tested with the PERC 60 panels. The
> UL 2703 listing requires the two to be tested/listed together for the rack
> to functionally ground the solar panels. [CEC 690.43(A)] Alternately, bond
> the metal parts of PV equipment to grounded metal supports per CEC
> 690.43(B).*
>
>
>
> Is it true that UL2703 requires testing with each and every type of
> module? I am using 100 Series rail from my stock with Mission MSE325SR8K
> panels.  Does anyone have any documentation on file that would satisfy this
> request?
>
>
>
> I have sent an inquiry to Snap-n-rack about this but they often take a
> week or more to respond.
>
>
>
> Thanks in advance.
>
>
>
> William Miller
>
>
>
> Miller Solar
>
> 17395 Oak Road, Atascadero, CA 93422
>
> 805-438-5600
>
> www.millersolar.com
>
> CA Lic. 773985
>
>
>
>
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